Code Definition

P1110 — Intake Air Temperature Sensor Signal (Dynamic Chamber) Circuit

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Mazda

About P1110

P1110 is a manufacturer-specific powertrain diagnostic trouble code recorded for Mazda vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1110 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1110 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

This DTC indicates a fault in the circuit of the Intake Air Temperature (IAT) sensor located in the dynamic chamber of the Mazda intake system. The IAT sensor is a thermistor whose resistance changes with air temperature, and the ECM monitors its signal voltage to adjust fuel delivery and ignition timing for the density of the incoming air. P1110 sets when the ECM sees the IAT signal as out of range, implausible, or erratic, which typically points to a faulty sensor, a wiring fault, or a poor connection at the sensor. When this code is active the driver may notice poor fuel economy, rough or u...

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